Improvement in revolving coulter



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R. L. PITCHER AND R. ELLWOOD, 0F SYCAMORE, ILLINOIS- Letters Patent No.85,957, dated Janua/ry 19, 1869.

IMPROVEMENT IN lREv'oLvINe Cotm'rER.

The Schedule referred to Ln these Letters .Patnt :andmaking; of thelame.

To all whom this may-ico'nrn .Be it known that we, R. L. PITCHER and R.ELL- Woopfof Sycamore, in the county of De Kalb, and dState of Illinois,have invented an Improvement in Revolving Ooulters; and we do herebydeclare that the following is a full, clear, and exact description ofthe same, reference being had to the accompanying draw-l ings, andletters marked thereon, making a part of this description, in which'-Figure 1 is a perspective representation of our invention, as it isattached to a plow-beam, and-in position for' use. Z

' Figure 2,` a plan o'r top view of the same.

Figure 3, an enlarged view of the cylindrical joint, 4by means of whichthe coulter has a partial revolution in a vertical and horizontal plane.

l Figure 4, an enlarged view of one of the arms which support thecoulter. 4`

The nature of the present invention consists in the use' of acylindrical joint, which is so constructed and arranged that the 'armswhich it supports may be adjusted and hold the coulter in position torun any1 required depth in the ground, and' in pivoting the cylindricaljoint to agslotted plate projecting out from the clamp, with which thedevice is fastened tothe plow` beam, whereby the coulter maybe set to orfrom the plow, as the case'may require.

. To enable others to fully comprehend the construe t-ion of ourinvention, we have marked like parts with like letters, and will nowgive adetailed description.

A A represent a screw-clamp, -which is used to fasten ,our device .tothe plow-beam B, and which has a shank,

, projecting downward, and terminating in a horj izontal bar or support,O, through which .is made a slot, D, iig. 2, to receive a bolt, E, figs.1 and 2, with which a cylindrical joint, F, is so held in position as totum in ahorizontal plane, said slot permitting the bolt to movelongitudinally with the bar C, and to and from ,the beam l?, when thecoulter is to be adjusted.

The cylinderl is made of metal or other suitable Imaterial, and theplate H, which is rigidly attachedto it, operates on 'the under side ofthe plate O, and has ahole made through, of suitable size to receive theshoulder d of the bolt E, and thus allow the bolt to the'boltE by meansvof'astop orprojection, I', figs.' 'I

and 3, which is rigidly fastened to the upper side of' theplate H, andstrikes against the edge of the plate O, when the coulter is swung outfrom the beam, as shownatfg. 2.

The coulter may be set to or from the beam by loosening a nut on thebolt E, and tightening it after the bolt has been moved to the'properposition in the slot D; and the coulter M'can be adjusted' to run anyrequired depth in the ground, by raising or lowering the arms J, as thecase may require, and afterward clamping them firmly to the r'cylinder Fby means of a nut and bolt, o.

Having thus fully described our invention, What we claim, and desire tosecure by Letters Patent of the United States, is-

1. The clampA A, terminating in a slotted plate,

(l, in'combination with the cylinder F, bolt E, and plate H, arrangedtoadjust the coulter laterally, as herein described.

2. The cylinder F, plate H, having'the stop I, arms J, and plate C,arranged to adjust the coulter M laterally and vertically, substantiallyas set forth.

-R. L. PITCHER.

R. -ELLWOOD.

